Thanks in advance for your help! I have a Weil McLain oil Boiler with a Wayne HSG200 gas conversion burner in it. It has been giving me nuisance lockouts for a few months now, but it always started when I reset it with the main switch. I talked to Wayne, they said most common thing was a dirty flame rod, I replaced it with a new one. It ran for 2 to 3 days without problem, then it started to lockout again. It has gotten to the point where it doesn't start anymore. I can hear spark after it blows for a bit. I think it is the ignition control not sending 24V to the gas valve. The air pressure switch checks out good and I can hear it clicking on when the blower fires up, and I jumped it to be sure. I measure across the gas valve and and only see at most 12V. I measured at the control MV1 to MV2 while it was firing and only see 10V there. I see 27V at the 24V terminal on the controller (Fenwal 05-31). All I could find today (Saturday) was the Honeywell universal and I am looking for the one it calls for in the manual, Honeywell S89F, or the updated Fenwal 35-65. I am wondering if it sounds like my diagnosis is correct and would like to know if you would use one of the two valves I am listing or something else. Wayne also has their own control now it looks like. Pictures at the following link: https://photos.app.goo.gl/toTCLbrb6YgFGhdj7
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